/**
 * @license
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var webpack = require("webpack");
var path = require("path");

module.exports = function(config) {
  config.set({
    plugins: [
      "karma-chrome-launcher",
      "karma-firefox-launcher",
      require(path.resolve(
        __dirname,
        "../__shared__/karma-plugins/karma-mocha"
      )),
      "karma-sourcemap-loader",
      "karma-webpack",
      require(path.resolve(
        __dirname,
        "../__shared__/karma-plugins/karma-custom-html-reporter"
      )),
      require(path.resolve(
        __dirname,
        "../__shared__/karma-plugins/karma-custom-json-reporter"
      ))
    ],
    browsers: ["ChromeHeadless", "FirefoxHeadless"], // run in Chrome and Firefox
    customLaunchers: {
      FirefoxHeadless: {
        base: "Firefox",
        flags: ["-headless"],
        displayName: "FirefoxHeadless"
      }
    },
    singleRun: true, // set this to false to leave the browser open
    frameworks: ["mocha"], // use the mocha test framework
    files: [
      "tests.webpack.js" // just load this file
    ],
    preprocessors: {
      "tests.webpack.js": ["webpack", "sourcemap"] // preprocess with webpack and our sourcemap loader
    },
    reporters: ["dots", "custom-html", "custom-json"], // report results in these formats
    htmlReporter: {
      outputFile: path.resolve(__dirname, "./results/results.html"),
      pageTitle: "Stencil + Custom Elements",
      groupSuites: true,
      useCompactStyle: true
    },
    jsonResultReporter: {
      outputFile: path.resolve(__dirname, "./results/results.json")
    },
    webpack: {
      // kind of a copy of your webpack config
      mode: "development",
      // devtool: 'inline-source-map', // just do inline source maps instead of the default
      resolve: {
        modules: [
          path.resolve(__dirname, "../__shared__/webcomponents/src"),
          path.resolve(__dirname, "./node_modules"),
          path.resolve(__dirname, '../../node_modules'),
        ]
      },
      module: {
        rules: [
          {
            test: /\.m?js$/,
            exclude: /node_modules/,
            use: {
              loader: "babel-loader",
            }
          }
        ]
      }
    },
    webpackServer: {
      // noInfo: true // please don't spam the console when running in karma!
    }
  });
};
